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[Feature #20563] Drop support for Windows older than 8/Sever 2012

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Directly call APIs available on Windows 8/Server 2012 and later.
This commit is contained in:
Nobuyoshi Nakada 2024-07-30 17:46:21 +09:00 committed by Nobuyoshi Nakada
parent 7ef8051cbb
commit 7aea269b89
Notes: git 2024-07-31 00:57:56 +00:00 
Merged: https://github.com/ruby/ruby/pull/11279
1 changed files with 7 additions and 33 deletions
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40
win32/win32.c
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@ -4781,28 +4781,6 @@ waitpid(rb_pid_t pid, int *stat_loc, int options)
#include <sys/timeb.h>
static int have_precisetime = -1;
static void
get_systemtime(FILETIME *ft)
{
typedef void (WINAPI *get_time_func)(FILETIME *ft);
static get_time_func func = (get_time_func)-1;
if (func == (get_time_func)-1) {
/* GetSystemTimePreciseAsFileTime is available since Windows 8 and Windows Server 2012. */
func = (get_time_func)get_proc_address("kernel32", "GetSystemTimePreciseAsFileTime", NULL);
if (func == NULL) {
func = GetSystemTimeAsFileTime;
have_precisetime = 0;
}
else
have_precisetime = 1;
}
if (!ft) return;
func(ft);
}
/* License: Ruby's */
/* split FILETIME value into UNIX time and sub-seconds in NT ticks */
static time_t
@ -4833,7 +4811,7 @@ gettimeofday(struct timeval *tv, struct timezone *tz)
FILETIME ft;
long subsec;
get_systemtime(&ft);
GetSystemTimePreciseAsFileTime(&ft);
tv->tv_sec = filetime_split(&ft, &subsec);
tv->tv_usec = subsec / 10;
@ -4850,7 +4828,7 @@ clock_gettime(clockid_t clock_id, struct timespec *sp)
FILETIME ft;
long subsec;
get_systemtime(&ft);
GetSystemTimePreciseAsFileTime(&ft);
sp->tv_sec = filetime_split(&ft, &subsec);
sp->tv_nsec = subsec * 100;
return 0;
@ -5727,14 +5705,10 @@ filetime_to_unixtime(const FILETIME *ft)
static long
filetime_to_nsec(const FILETIME *ft)
{
if (have_precisetime <= 0)
return 0;
else {
ULARGE_INTEGER tmp;
tmp.LowPart = ft->dwLowDateTime;
tmp.HighPart = ft->dwHighDateTime;
return (long)(tmp.QuadPart % 10000000) * 100;
}
ULARGE_INTEGER tmp;
tmp.LowPart = ft->dwLowDateTime;
tmp.HighPart = ft->dwHighDateTime;
return (long)(tmp.QuadPart % 10000000) * 100;
}
/* License: Ruby's */
@ -7665,7 +7639,7 @@ wutimensat(int dirfd, const WCHAR *path, const struct timespec *times, int flags
}
}
else {
get_systemtime(&atime);
GetSystemTimePreciseAsFileTime(&atime);
mtime = atime;
}